221432217562230 has 32 divisors (see below), whose sum is σ = 531438643029600. Its totient is φ = 59048444585472.

The previous prime is 221432217562207. The next prime is 221432217562243. The reversal of 221432217562230 is 32265712234122.

221432217562230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3380076 + ... + 21314064.

It is an arithmetic number, because the mean of its divisors is an integer number (16607457594675).

Almost surely, 2^{221432217562230} is an apocalyptic number.

221432217562230 is an abundant number, since it is smaller than the sum of its proper divisors (310006425467370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221432217562230 is a wasteful number, since it uses less digits than its factorization.

221432217562230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18345568.

The product of its (nonzero) digits is 483840, while the sum is 42.

Adding to 221432217562230 its reverse (32265712234122), we get a palindrome (253697929796352).

The spelling of 221432217562230 in words is "two hundred twenty-one trillion, four hundred thirty-two billion, two hundred seventeen million, five hundred sixty-two thousand, two hundred thirty".